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Finding the Fourth Proportional to 222,455.52, 306,988.34 and 120,480.92

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Solution

The fourth proportional to 222,455.52, 306,988.34 and 120,480.92 is: 166,263.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,455.52 : 306,988.34 = 120,480.92 : x
  2. Step 2: Convert to fraction form
    222,455.52/306,988.34 = 120,480.92/x
  3. Step 3: Cross multiply
    222,455.52x = 306,988.34 × 120,480.92
  4. Step 4: Simplify right side
    222,455.52x = 36,986,237,632.47
  5. Step 5: Solve for x
    x = 36,986,237,632.47/222,455.52
  6. Step 6: Final answer
    x = 166,263.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.